public class Example3_5 {
    public static void main(String args []) {
    long sum = 0,a = 8,item = a,n = 12,i = 1;
    for(i=1;i<=n;i++) {
      sum=sum+item;
      item = item*10+a;
      }
    System.out.println(sum);
     }
}
